Home / 4,709.90-7,065.66-1,938.08

Finding the Fourth Proportional to 4,709.90, 7,065.66 and 1,938.08

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Solution

The fourth proportional to 4,709.90, 7,065.66 and 1,938.08 is: 2,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.90 : 7,065.66 = 1,938.08 : x
  2. Step 2: Convert to fraction form
    4,709.90/7,065.66 = 1,938.08/x
  3. Step 3: Cross multiply
    4,709.90x = 7,065.66 × 1,938.08
  4. Step 4: Simplify right side
    4,709.90x = 13,693,814.33
  5. Step 5: Solve for x
    x = 13,693,814.33/4,709.90
  6. Step 6: Final answer
    x = 2,907.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.